Shell Programming and Scripting

Hi All,

I need some help in script or awk to create a textfile.

I have a directory where two subdirectories exists say A and B.
Now I need to write a ".txt" file with well arranged(space wraped) three columns in it with the data as follows:

1st column:Serial number(which will increment with the row number)
2nd column:With the filenames of those files existing inside directory A (I do have subfolders inside A)
3rd column:With the filenames of those files existing inside directory B (here also same problem, I have subfolders inside B).

I tried outputing ls * and manipulating .. but was stuck in subfolders..

If this is the input...
(think of nesting as in the directory structure)

Code:

animals
  humans
    Joe
    John
    Mary
  dogs
  cats
fruits
  apples
    red
    granny
  banana

then output =
????

INPUT:

Now the output is I require:-

Now I am able to get all the output.
Only thing remaning is arranging them into three columns.

What I have done is something like this:

Code:

find /animals/humans -type f|awk -F/ '{print $NF}'>animals.lst

find /animals/fruits -type f|awk -F/ '{print $NF}'>fruits.lst

Thanks in anticipation.

if u have a data:

then result shud be like:
Column1 Column2 Column3
--------- -------- ----------

That is using the three blank lines I want to separate the column to three.